Get quotes from 3 top Online Consultation with Thoracic Surgeon surgeons

Dr. Ali Gozukucuk is a Pediatric Surgeon, born in 1969. He earned his medical degree from Çukurova University. He completed his specialization in Pediatric Surgery at Erciyes University. He has published three articles in international journals. He has also presented thirteen papers at international scientific meetings.

Dr. Gozukucuk has worked at Erciyes University and Kahramanmaras Children's Hospital. He treats pediatric hernias, appendicitis, constipation, and other surgical conditions in children. He is dedicated to improving pediatric surgical care.

Dr. Pakize Eker Balcıoğlu is a board-certified general surgeon. She graduated from Istanbul University Cerrahpaşa School of Medicine (English program) and completed her residency at Marmara University. She has published many articles in local and international journals. She has also worked as a columnist for two medical publications.

Dr. Balcıoğlu specializes in diagnosing and treating breast pain. She is experienced in advanced hemorrhoid therapies, including laser and Longo surgery. Her expertise also includes anal fissure management, pilonidal sinus day surgery, and lipoma excision. She has worked at Marmara University Hospital, Atlas Hospital, Maltepe Ersoy Hospital, and Sultanbeyli Ersoy Hospital. She has made important contributions to surgical practice in her field.

Dr. Sujit Banyatpiyaphod, M.D.

Education

• 1984 Doctor of Medicine, Chulalongkorn University
• 1985-1988 Residency in Thoracic Surgery Chulalongkorn University
• 1992-94 Cardiac Surgery Fellowship, St. Vincent Hospital, Portland, Oregon, USA
• 2005 Robotic Cardiac Surgery Training, East Carolina University, North Carolina, USA
• 2006 Robotic Cardiac Surgery Training, Alliance Hospital, Odessa, Texas, USA

Professional Experiences

• 1994 - 2001 : Chief of Cardiac Surgery Unit, Police General Hospital
• 2001 - 2009 : Cardiovascular Surgeon, Bangkok Heart Hospital
• 2009 - 2011 : Cardiovascular Surgeon, Bangkok Hospital Phuket
• 2012- 2021 : Cardiovascular Surgery, Medical Director of Heart Center of Bangkok Pattaya Hospital, Pattaya, Thailand

Certifications

• 1988 Diploma of the Thai Board of Thoracic Surgery, Chulalongkorn University
• 1994 Fellowship certification in Cardiovascular surgery, Saint Vincent Hospital, USA

Area of Interest

• Off-pump Coronary Artery Bypass surgery (OPCAB)
• Minimally invasive Heart Valve surgery
• Autologous Stem cell transplantation in end stage Cardiomyopathy
• Peripheral blood stem cell and  Mesenchymal stem cell collection, storage and treatment
• Phamacogenomics in personalized cardiovascular drugs treatment
• Personalized anti-aging treatment and lifestyle modification by genetic sequencing

2023 – Istanbul Gaziosmanpaşa Taksim Education and Research Hospital – General Surgery Clinic Associate Professor

2013 – Istanbul Gaziosmanpaşa Taksim Education and Research Hospital – General Surgery Clinic Specialist

2008 – 2013 Private Medical Park Fatih Hospital, General Surgery Specialist - Deputy Chief Physician

2005 – 2007 Private Gelişim Hospital – General Surgery Specialist

2003 – 2005 Private Istanbul Şafak Hospital – General Surgery Specialist - Chief Physician

2002 – 2003 ISTANBUL HASEKİ EDUCATION AND RESEARCH HOSPITAL – General Surgery Clinic Assistant Physician

1998 – 2002 Ankara Education and Research Hospital – General Surgery Clinic Assistant Physician

1998 – Health Sciences University – Istanbul Haseki Health Application and Research Center – Medical Specialization

1991 – Gazi University Faculty of Medicine – Bachelor’s Degree

Certificates

IGM Diagnosis, Treatment Workshop, Granulomatous Mastitis, Kocaeli, Certificate, 07.10.2023 (National)

ibreast 51- Free Flap Reconstruction, Breast Cancer Surgery, Online, Certificate, 30.09.2023 – 30.09.2023 (International)

ibreast 50- Triple Negative Breast Cancer, Breast Cancer, Online, Certificate, 02.09.2023 -02.09.2023 (International)

ibreast 49- Implant Based Reconstruction, Breast Cancer, Online, Certificate, 12.08.2023 -12.08.2023 (International)

ibreast 48- DCIS, İbreast 48- DCIS, Online, Certificate, 15.07.2023 -15.07.2023 (International)

ibreast 47- Conference Updates, Breast Cancer, Online, Certificate, 25.06.2023 -25.06.2023 (International)

ibreast 46- Margin Revisited, Breast Cancer, Online, Certificate, 10.06.2023 -10.06.2023 (International)

1. International 4. National Breast Surgery Congress, Breast Surgery, Ürgüp, Certificate, 05.05.2023 – 07.05.2023 (International)

ibreast 44- HER2 Positive Disease, Breast Cancer, Online, Certificate, 29.04.2023 -29.04.2023 (International)

St-Gallen 2023, St-Gallen Congress Summary Meeting, Istanbul, Certificate, 01.04.2023 -01.04.2023 (National)

ibreast 43- Save The Nipple, Breast Cancer, Online, Certificate, 25.03.2023 -25.03.2023 (International)

ibreast 42-Chest Wall Perforator Flap Revisited, Breast Cancer, Online, Certificate, 25.02.2023 -25.02.2023 (International)

ibreast 41- High Risk And B3 Lesions, Breast Diseases, Online, Certificate, 28.01.2023 -28.01.2023 (International)

15. New Approaches in Breast Cancer Education Meeting, Breast Cancer, Istanbul, Certificate, 07.01.2023 – 08.01.2023 (National)

Articles she wrote and took part in;

1.YILDIRIM EMİNE, BEKTAŞ SİBEL, YETİŞ FIRAT, YILDIZ EREN OZAN, ÖZDEMİR MUHAMMED, KOMUT NESLİHAN, ÇALIK MUSTAFA, ER AHMET MUZAFFER. Correlation between breast and axillary pathologic complete response after neoadjuvant chemotherapy in breast cancer. Annali Italiani di Chirurgia, 2023

2.UZUN NEDİM, YILDIRIM EMİNE. Relationship Between Toilet Type and Hemorrhoids. Bezmialem Vakif University, 2022

3.YILDIZ EREN OZAN, YILDIRIM EMİNE, ORHUN ERDOĞAN KIVILCIM, ERYILMAZ İKLİL, YÜNLÜEL EMİR MEHMET, YETİŞ FIRAT, ULUKENT SUAT CAN. The effect of the covid 19 pandemic on the number of patients treated for acute and complex acute appendicitis. Annali Italiani di Chirurgia, 2202

4.YILDIRIM EMİNE, BEKTAŞ SİBEL, ÖZDEMİR MUHAMMED, KARAGÜLLE AHENK, ER AHMET MUZAFFER, UÇAR NEŞE. Upgrade Rates of DCIS, Intraductal Papilloma, and the Other High-risk Breast Lesions. Hamidiye Medical Journal, 2022
 

5.ÖZKAN GÜMÜŞKAYA PERİHAN, ALTUN ÖZGÜR, KARAKÜTÜK YÜZTAŞ NUR, ÖZSOY NESLİHAN, AYDIN TUTAK GÜLTEN, YILDIRIM EMİNE, ADAŞ MİNE, KÜÇÜK MEHMET. COVID-19 Pnömonisi Sonrası AntiHBs Değerlerindeki Değişiklikler. Journal of Contemporary Medicine, 2022;12(4), 

6.KOMUT NESLİHAN, BEKTAŞ SİBEL, YILDIRIM EMİNE. The relationship of tumor budding with GOLPH3 expression and histopathological prognostic parameters in colorectal adenocarcinoma. Annals of Diagnostic Pathology 2022 Jun;58:151933. 

7.KAYADİBİ YASEMİN, UÇAR NEŞE, AKAN YEŞİM NAMDAR, KAYA MEHMET FATİH, YILDIRIM EMİNE, ALADAĞ KURT SEDA, SOYLU BOY FATMA NUR, TAŞKIN FÜSUN, İÇTEN GÜL ESEN. Magnetic resonance imaging findings associated with recurrence in idiopathic granulomatous mastitis. Clinical Imaging, 2022

8.YILDIRIM EMİNE, KEĞİN MURAT, ÖZDEMİR MUHAMMED, BEKTAŞ SİBEL, PELEN ZEKERİYA, ER AHMET MUZAFFER. Neoplasms of theAppendix; Single Institution and Ten-Year Experiences Results. Turkish Journal of Trauma and Emergency Surgery, 2022;28(3), 352-360

9.YILDIRIM EMİNE, YILDIZ EREN OZAN, ERYILMAZ İKLİL, ER AHMET MUZAFFER, BEKTAŞ SİBEL. Comparison of excised breast volume, re-excision rate and margin positivity in breast-conserving surgery in breast cancer patients using and not using neoadjuvant chemotherapy. Journal of Surgery in Medicine,2022;6

10.YILDIRIM EMİNE, BEKTAŞ SİBEL, PELEN ZEKERİYA, YANIK İREM, ER AHMET MUZAFFER, ÇENGEL FERHAT, ÖZKAN GÜMÜŞKAYA PERİHAN. Histopathological, Radiological, and Demographic Factors Predicting the Response to Neoadjuvant Therapy for Rectal Cancer. Journal of Gastrointestinal Cancer, 2022;53(1)

11.KAYADİBİ YASEMİN, KOÇAK BURAK, UÇAR NEŞE, AKAN YEŞİM NAMDAR, YILDIRIM EMİNE, BEKTAŞ SİBEL. MRI Radiomics of Breast Cancer: Machine Learning-Based Prediction of Lymphovascular Invasion Status. Academic Radiology, 2022;29(1), 126-134.

12.YILDIRIM EMİNE, UÇAR NEŞE, YETİŞ FIRAT, KAYADİBİ YASEMİN, BEKTAŞ SİBEL. Diagnostic performance of breast imaging with ultrasonography, magnetic resonance and mammography in the assessment of residual tumor after neoadjuvant chemotherapy in breast cancer patients. Journal of Surgery and Medicine, 2022;6(1), 43-48

13.YILDIRIM EMİNE, BEKTAŞ SİBEL, GÖKTAŞ AYDIN SABİN, ER AHMET MUZAFFER, YANIK İREM, ÖZKAN GÜMÜŞKAYA PERİHAN, YILMAZ BARBAROS UTKU, BİLİCİ AHMET, ÖNCEL MUSTAFA. Factors Predicting Response to Neoadjuvant Chemotherapy in Locally Advanced Gastric Cancer. Journal of Istanbul Faculty of Medicine / İstanbul Tıp Fakültesi Dergisi, 2022;85(1), 41-50. 

14.YILDIRIM EMİNE, Pelen Zekeriya, KEĞİN MURAT, UÇAR NEŞE, KAYADİBİ YASEMİN, GÜNDOĞAR ÖZGECAN. Evaluation of the Reliability of Preoperative Ultrasonography and Ultrasonography-Guided Fine Needle Aspiration Biopsy in Axillary Staging in Patients With Breast Cancer. Journal of Academic Research in Medicine, 2021;11(3), 269-276., 

15. KAYADİBİ YASEMİN, UÇAR NEŞE, KAYA MEHMET FATİH, YILDIRIM EMİNE, BEKTAŞ SİBEL. Characterization of Suspicious Microcalcifications on Mammography Using 2D Shear-Wave Elastography. Ultrasound in Medicine & Biology, 2022;47(9), 2532-2542. 

16.KAYADİBİ YASEMİN, TEKCAN ŞANLI DENİZ ESİN, UÇAR NEŞE, YILDIRIM EMİNE, ŞANLI AHMET NECATİ. Evaluation of the Appearance Characteristics of Suspicious Microcalcifications Detected by Ultrasonography. Journal of Academic Research in Medicine, 2022;11(2), 199-205. 

17.YILDIRIM EMİNE, ÖZER HİLAL, ÖZER İLTER, KOYUNCU ADİL, YILDIRIM TİMUR. The Effects on Bacterial Translocation and Tissue Damage of Selenium Treatment in an Experimental Intestinal Ischaemia-Reperfusion Model. Turkish Journal of Trauma and Emergency Surgery, 2021;27(4), 389-394. 

18.YILDIRIM EMİNE, AKBAŞ PELİN, ORHUN ERDOĞAN KIVILCIM, BEKTAŞ SİBEL, ÖZKAN GÜMÜŞKAYA PERİHAN, ER AHMET MUZAFFER, PALTURA CEKİ. The comparison of the histopathological results of the thyroid fine-needle aspiration biopsies in the 795 patients with thyroidectomy. Diagnostic Cytopathology, 2021

Dr. Stefanie Veit is an Interventional Cardiologist with 26+ years of experience and a Doctorate from Julius Maximilians University, Würzburg. She has specialty training from Cedars-Sinai Medical Center, Los Angeles and is a member of the German Society for Thoracic Surgery. She has published many articles in international journals.

Workplace:

Istanbul Florence Nightingale Hospital

Head of the Thoracic Surgery Department

Education:

2014-2015

President of the European Society of Thoracic Surgeons

2009-2017

Member of the Board of Directors, European Society of Thoracic Surgeons

West Virginia University, School of Medicine

Chair of Thoracic Surgery

2019 –

Vice Chair of Thoracic Surgery and Director of the Tracheal Surgery Program, West Virginia University,

School of Medicine

2009-2019

Program Director of Thoracic Surgery, Group Florence Nightingale Hospitals

2009 – 2019

Professor of Thoracic Surgery and Head of the Department of Thoracic Surgery, Istanbul Faculty of

Medicine

2001-2019

Department of Thoracic Surgery, Istanbul University

2001

Department of Thoracic Surgery, Gülhane Military Medical Academy

1999

Department of Thoracic and Cardiovascular Surgery, Istanbul University

1997

Department of Thoracic and Cardiovascular Surgery, Istanbul University

1992

Faculty of Medicine, Marmara University

Rewards:

European Society of Thoracic Surgeons Best Poster presentation Award

• Turkish Thoracic Society, best presentation award

• Turkish Lung Cancer Society, best presentation award

• Turkish Thoracic Society, best presentation award

• Euroepan Association of Cardio-Thoracic Surgery, Best Poster Award

Fields of interest:

 Surgical treatment for locally advanced stage lung cancer

 Extended surgery for mediastinal masses

 Robotic lung cancer surgery

 Robotic surgery for mediastinal masses

 Tracheal surgery (tumors, stenosis, fistula, and others)

EDUCATION AND QUALIFICATIONS

• Doctor of Medicine and Surgery , University of Barcelona, 1981.
• Specialization in general surgery (1987) and thoracic surgery (2001).
• Doctorate in Medicine and Surgery , University of Barcelona, 1995.
• Certification of the European College of Thoracic and Cardiovascular Surgery (FETCS), 2001.
• Associate Professor of Surgery at the University of Barcelona since 1995 and representative of the Associated Hospitals.
• Professor of the European School of Thoracic Surgery (ESTS-EACTS).
• Visiting Professor at Massachusetts General Hospital, Harvard Medical School, Boston, USA (2016).

PROFESSIONAL EXPERIENCE

• General Surgery : Training at the Red Cross Hospital in Barcelona (1982-1986).
• Thoracic Surgery : Mayo Clinic, Rochester, Minnesota, and Massachusetts General Hospital, New England Deaconess Hospital (Harvard Medical School), Boston, USA (1986-1987).
• Experience at the Red Cross Hospital and Sagrat Cor de Barcelona (1988-1989).
• Career : Consultant physician (1990-1993), clinical director (1994-1999) and director of the thoracic surgery service at a private medical centre in Barcelona (2000 to date).
• Head of the Thoracic Surgery Service at the Hospital Clínic de Barcelona (March 2010 to present).

SCIENTIFIC PUBLICATIONS AND ACADEMIC ACHIEVEMENTS

• 505 reports at national and international conferences.
• 145 scientific articles in national and international journals.
• Member of the editorial board of the journals Lung Cancer and Archivos de Bronconeumología .
• Reviewer for the European Journal of Thoracic and Cardiovascular Surgery , Journal of Thoracic Oncology , Annals of Oncology and Archivos de Bronconeumología .

PARTICIPATION IN SCIENTIFIC SOCIETIES

• He has held key positions in the European Society of Thoracic Surgeons (ESTS): International Communications Director (2010-2011), Past-President (2009-2010), President (2008-2009), President Elect (2007-2008), Regent (2005-2007), Board Member (1995-1997) and Founding Member (1993).
• Member of the American Society of Thoracic Surgeons (STS), member of the International Relations Group (2010-2013).
• Member of the American Association of Thoracic Surgeons (AATS), the European Association for Cardiothoracic Surgery (EACTS), the European Respiratory Society (ERS), the International Association for the Study of Lung Cancer (IASLC), and nine other national and international scientific societies.

2017 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2015 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2013 - 2018

University of Health Sciences, Tepecik Health Practice Research Hospital

2013

Articles Published in 28 International Refereed Journals

Papers and Posters Presented at 17 International Scientific Meetings

Articles Published in 55 National Refereed Journals

56 Papers and Posters Presented at National Scientific Meetings

14 Referenced Publications in National and International Refereed Journals

35 Domestic Panel Conference Moderators Live Surgery

10 Domestic Courses Attended

8 International Conferences Attended

32 Meetings with Domestic Participants

6 International Meetings

Education and Experience

Dr. Ramazan Gökhan Atış, born in Istanbul in 1978, graduated from Cağaloğlu Anatolian High School in 1996. He completed his medical education at Çapa Faculty of Medicine in 2002. Between 2002 and 2008, he received his specialization training at the Istanbul Şişli Etfal Training and Research Hospital Department of Urology, and obtained the title of Urology Specialist in February 2008. After working at Edremit Military Hospital between 2008 and 2009, he started working as a Urology specialist at Istanbul Göztepe Training and Research Hospital in 2009. In 2011, he underwent a 3-month Laparoscopy-Robotic Urology training at Heidelberg University Heillbronn Clinic. Between 2009 and 2014, he conducted numerous scientific research studies, especially in the field of endourology, and obtained the title of Associate Professor in September 2014. In 2017, he was elected as a board member of the Endourology Society and has been serving in this position since then. Since 2018, he has been actively involved in the Endourology working group of the European Association of Urology, Young Academic Urologists (EAU-YAU) Committee for a period of 2 years. In January 2021, he was appointed as a Professor at the Istanbul Medeniyet University Department of Urology.After that started working at Şişli Memorial Hospital in 2022. Prof. Dr. Ramazan Gökhan Atış, has more than 100 articles published in national and international journals.

• 1996 - 2002, Istanbul University Istanbul Faculty of Medicine, Undergraduate
• 2002 - 2008, Şişli Etfal Training and Research Hospital/Istanbul, Specialization in Medicine
• 2014, Istanbul Medeniyet University Goztepe Training and Research Hospital, Associate Professorship
• 2021, Istanbul Medeniyet University Department of Urology, Professorship

Administrative Duties

• Editor of Endourology Bulletin
• Board Member of Endourology Society (Secretary General)

Memberships in Scientific Organizations

• Turkish Urology Association
• Turkish Endourology Association
• Turkish Andrology Association
• Eurasian Urooncology Association
• Turkish Medical Association

Education and Specialization

• 1989 - 1995 Ondokuz Mayıs University Faculty of Medicine
• Istanbul University, Istanbul Faculty of Medicine – Specialization
• 2006 - Associate Professorship, Başkent University Faculty of Medicine

Experience

• 1995 - 1996 - Assistant Doctor, Emergency Department, Ardahan State Hospital
• 1996 - 1997 - Atatürk University Faculty of Medicine
• 1997 - 2002 - Istanbul University, Istanbul Faculty of Medicine, Department of Cardiology
• 2002 - Istanbul University, Istanbul Faculty of Medicine, Department of Cardiology
• 2003 - 2007 - Başkent University Konya Research and Application Center
• 2007 - 2012 - Süleyman Demirel University Faculty of Medicine, Department of Cardiology
• 2012 - 2017 - Süleyman Demirel University Faculty of Medicine, Department of Cardiology
• 2013 - 2014 - Mayo Clinic Echocardiography Lab, Rochester, MN, USA
• 2017 - 2020 - ASV Yaşam Hospital
• 2020 - 2021 - Antalya Anadolu Hospital

Education and Specialization

• 1989 - 1995 Ondokuz Mayıs University Faculty of Medicine
• Istanbul University, Istanbul Faculty of Medicine – Specialization
• 2006 - Associate Professorship, Başkent University Faculty of Medicine

Experience

• 1995 - 1996 - Assistant Doctor, Emergency Department, Ardahan State Hospital
• 1996 - 1997 - Atatürk University Faculty of Medicine
• 1997 - 2002 - Istanbul University, Istanbul Faculty of Medicine, Department of Cardiology
• 2002 - Istanbul University, Istanbul Faculty of Medicine, Department of Cardiology
• 2003 - 2007 - Başkent University Konya Research and Application Center
• 2007 - 2012 - Süleyman Demirel University Faculty of Medicine, Department of Cardiology
• 2012 - 2017 - Süleyman Demirel University Faculty of Medicine, Department of Cardiology
• 2013 - 2014 - Mayo Clinic Echocardiography Lab, Rochester, MN, USA
• 2017 - 2020 - ASV Yaşam Hospital
• 2020 - 2021 - Antalya Anadolu Hospital

Specializations

Head and Neck Surgery

Surgical Treatment of Head and Neck Cancers

Dizziness (Vertigo)

Endoscopic Sinus Surgeries

Hearing Loss and Ear Diseases Surgery

Endoscopic Head and Neck Diseases Surgery

Head and Neck Diseases Microsurgery

Salivary Gland Diseases and Surgery

Specializations

Adult and Pediatric ENT Diseases

Plastic Surgery Procedures (Rhinoplasty, Protruding Ear Correction)

Filling-Botox Procedures

Endoscopic/Microscopic Middle Ear Surgery

Sleep Apnea and Snoring Surgery

Tonsil and Adenoid Operations with Plasma-Evaporation Method

Dr. Walter Klepetko is a Professor and Head of the Division of Thoracic Surgery at MedUni Vienna and Vienna General Hospital. He is an expert in thoracic surgery, lung transplantation, surgery for bronchial carcinoma, and pulmonary hypertension.

He founded one of the world’s largest lung transplant programs. His team performs over 100 lung transplants each year. In 2018, Dr. Klepetko led the team that performed Niki Lauda’s lung transplant. He is a former president of the European Association for Cardio-Thoracic Surgery. He also serves on the board of the American Association for Thoracic Surgery.

Dr. Klepetko has received the Grand Decoration of Honor for services to the Austrian Republic. He was also awarded the City of Vienna Prize for Medical Sciences for his medical and scientific contributions.

Assoc. Prof. Dr. Erkam Kömürcü is an experienced orthopedic surgeon. He specializes in orthopedics and traumatology. He has been board-certified by the Turkish Society of Orthopedics and Traumatology (TOTEK) since 2010. He earned the title of Associate Professor in 2015.

Dr. Kömürcü has strong expertise in hand and upper extremity injuries, spine surgery, sports injuries, pediatric orthopedics, and musculoskeletal tumors. He completed clinical fellowships, including one at the UCLA Spine Center. He has published over 35 international peer-reviewed articles and book chapters. His work has made a significant impact on orthopedic literature.

He is an active member of several professional societies, such as the Turkish Spine Society and the Turkish Society of Sports Injuries. Dr. Kömürcü has also held important academic and administrative positions. He has trained many medical students and residents.

Dr. Francisco Soldado is a family medicine specialist at Hospital HM Nou Delfos. He provides care for patients of all ages and is accredited in family medicine. Dr. Soldado uses the latest medical technologies in his practice.

He is known for his compassionate care and focus on patients’ needs. Dr. Soldado has a strong record of patient satisfaction and positive clinical results. He stays current in his field through ongoing medical education.

Prof. Dr. Adil Baykan is a leading general and oncological surgeon in Turkey. He has over 28 years of clinical experience. He specializes in colorectal, endoscopic, and laparoscopic surgeries. He also treats thyroid and breast diseases.

Dr. Baykan has published several articles on colon cancer in national and international journals. He completed advanced training at St. Mark’s Hospital in London, the University of Minnesota, and the Mayo Clinic in the USA. He holds important academic and surgical roles at top hospitals in Turkey.

Dr. Prakash Pandit is an MD in Radiation Oncology and works as a Consultant. He has expertise in advanced cancer treatments. He specializes in Tomotherapy-H, Linear Accelerator, and Brachytherapy. He provides modern care for various types of cancer.

Dr. Pandit is known for his work in radiation oncology. He uses the latest technology to help patients. He has treated many complex cases. He always maintains high standards of safety and accuracy in his treatments.